A kind of mobile phone leaded light component
Technical field
The present invention relates to leaded light component technical fields, and in particular to a kind of mobile phone leaded light component.
Background technique
Cell phone back light source is one of the key component that mobile phone is shown, function is well-off brightness and is evenly distributed
Light source can normally show image.Wherein leaded light component is the significant components in backlight, for guiding light source to issue light beam
Transmission direction, by linear light source or point light source be converted to area source outgoing.
As the improvement of people's living standards, people are higher and higher to the even photometric requirement of leaded light component, currently on the market
The even photosensitiveness of leaded light component be also insufficient for the demand of people.
Summary of the invention
It is an object of the invention to overcome disadvantages described above, a kind of mobile phone leaded light component is provided, even light effect is good
Light guide plate.
To achieve the above object, concrete scheme of the invention is as follows: a kind of mobile phone leaded light component, including from the bottom to top successively
Reflecting plate, light guide plate, the first diffusion barrier, bright enhancement film and the second diffusion barrier of setting;The shape of the light guide plate is wedge shape;Institute
The left side for stating light guide plate is incidence surface;The thickness of the light guide plate is gradually reduced from left to right;The incidence surface is equipped with several
Group deep Vee hull slot and several groups shallow v groove;Deep Vee hull slot described in several groups is placed equidistant on the incidence surface;Two adjacent groups institute
It states and is equipped with one group of shallow v groove between deep Vee hull slot;The top surface of the light guide plate is light-emitting surface;The light-emitting surface is equipped with several
The triangular prism that item is arranged parallel to each other;The bottom surface of the light guide plate is equipped with several grooves;The shape of the groove is hemisphere
Shape;The inside of each groove is equipped with several salient points.
The present invention is further arranged to, and the groove is evenly distributed on the bottom surface of the light guide plate.
The present invention is further arranged to, and the salient point is evenly distributed on groove.
The present invention is further arranged to, and the groove includes first groove and the second groove of two kinds of different-diameter length;
Each described first groove is set between two second grooves.
The present invention is further arranged to, the left side of the reflecting plate and the light guide plate against;The right side of the reflecting plate
Equipped with the fixture block for being clamped with the light guide plate.
Wherein, the first diffusion barrier and the second diffusion barrier are made of the raw material of following parts by weight:
The preparation method of every parts by weight light diffusing agent includes the following steps:
(1) by the methyl methacrylate of 60-70 parts by weight, the butyl acrylate of 4-8 parts by weight, 6-10 parts by weight 4-
Hydroxybutyl acrylate, the chain-transferring agent of 0.05-0.1 parts by weight, the first initiator of 0.1-0.3 parts by weight and 6-10 weight
The solvent of part is stirred mixing, is warming up to 120-140 DEG C, and insulation reaction 1-3h, obtains pre-polymer solution;
(2) polymer solution is fractionated, removes unreacted monomer, chain-transferring agent and solvent, washed, done
It is dry, prepolymer is obtained, the prepolymer is added to N, N- methylacetamide is dissolved, and spinning solution is obtained;
(3) spinning solution is subjected to electrostatic spray, obtains a nanometer nuclear particle;
(4) 30-40 parts by weight of styrene, 4-8 weight parts of methacrylic acid first are added in 100 parts by weight of deionized water
Ester, 1-5 weight parts of methacrylic acid propyl ester and 1-2 parts by weight Emulsifier after stirring and emulsifying, are added 0.5-1 parts by weight second and draw
The nanometer nuclear particle in agent and 30-40 parts by weight step (3) is sent out, then heats to 70-80 DEG C, after reacting 1-1.5h, is warming up to
85-95 DEG C, the reaction was continued 0.5-1h, obtain core-shell polymer emulsion;
(5) core-shell polymer emulsion be demulsified, washed, being dried to get the light diffusing agent is arrived.
Polycarbonate has odorless, tasteless, nontoxic transparent property, and the polycarbonate light transmittance that the present invention uses is up to
90%, and shock resistance with higher, but mist degree is only 12-14%, thus need that light is added in polycarbonate
Diffusant is improved.
Common light diffusing agent is divided into inorganic light diffusing agent and organic light diffusing agent, and inorganic light diffusing agent is commonly used for titanium dioxide
Titanium, barium sulfate, silica, calcium carbonate, aluminium oxide and glass microballoon etc., organic light diffusing agent are commonly used for PS, organic siliconresin
Deng.Inorganic light diffusing agent is solid sphere actually, can seriously reduce the light transmittance of diffusion barrier, and is also easy aggravation polycarbonate
The generation of stress concentration phenomenon.And organic light diffusing agent and polycarbonate have preferable compatibility and certain transparency,
Thus relatively inorganic light diffusing agent is more particularly suitable.But present organic light diffusing agent refractive index is more single, and using commercially available
If light diffusing agent, the partial size and refractive index of light diffusing agent are limited to the selection in market, cannot be directed to the demand of mobile phone well.
Light diffusing agent produced by the present invention is core-shell structure microballoon, for methyl methacrylate and butyl acrylate, 4-
The copolymer of hydroxybutyl acrylate is core, with the copolymer of styrene, methyl methacrylate and propyl methacrylate
As shell, there are the differences of refractive index between nucleocapsid, thus light can occur repeatedly to reflect by light diffusing agent of the invention,
Be conducive to improve the scattering of light, while the decline of light transmittance is unobvious.
After tested, the partial size of the core of light diffusing agent of the present invention is 700-900nm, shell with a thickness of 70-100nm, light warp
Both there is Rayleigh scattering when crossing light diffusing agent, there is also Mie scatterings, and it is more significant compared with the light diffusing agent scattering process of smaller particle,
The refraction number of more large-sized light diffusing agent increases, thus for mist degree can be significantly improved in polycarbonate.And it controls
The key of light diffusing agent partial size and its surface complex topography is process innovation, and the present invention is first made in a manner of electrostatic spray
The core of light diffusing agent, methylmethacrylate polymer made of relatively direct emulsion polymerization, can have bigger partial size, together
When emulsion polymerization formed nanoshells the partial size of light diffusing agent will not be caused excessive.In addition, the present invention is also by nucleocapsid
Polymerized monomer type and ratio can sufficiently adjust the refractive index difference of core, shell and polycarbonate, can be further improved expansion
Dissipate the light scattering property of film.
In addition, light diffusing agent of the invention also has preferable toughness, and also have with polycarbonate preferable compatible
Property, thus the shock resistance of optical diffusion film can be improved, film layer structure is stablized.
Wherein, first initiator is by cumyl peroxide and peroxidating di tert butyl carbonate by weight the ratio of 1-3:1
Example composition.The first initiator of compounding that the present invention uses can control reaction rate, and nanometer nuclear particle can be made to have suitable folding
Penetrate rate and partial size.
Wherein, the chain-transferring agent is by lauryl mercaptan and positive hexyl mercaptan by weight the ratio composition control of 1-3:1
The length of prepolymer can make prepolymer after electrostatic spray regeneration, form the nanometer nuclear particle of fold, enhance the folding for light
Penetrate ability.
Wherein, the solvent is dimethylbenzene.
Wherein, in step (3), the voltage of electrostatic spray is 15-25kv, and the temperature of electrostatic spray is 25-35 DEG C.The present invention
It is controlled by the parameter to electrostatic spray, can effectively control the particle size of nanometer nuclear particle.
Wherein, second initiator is made of ammonium persulfate and potassium peroxydisulfate by weight the ratio of 1-3:1.The present invention
The second initiator of compounding of use can control reaction rate, and the shell of light diffusing agent can be made to have suitable refractive index and thickness
Degree.
Wherein, the antioxidant is made of antioxidant 168 and antioxidant 1010 by weight the ratio of 1:1, institute
Light stabilizer is stated by 1- methyl -8- (1,2,2,6,6- pentamethyl -4- piperidines) sebacate and 2- cyano -3,3 '-diphenylprop
Olefin(e) acid -2- ethylhexyl mixes composition by weight the ratio of 1:1-2.The present invention preferably antioxidant and light stabilizer can be with
Significantly improve the ageing-resistant performance of diffusion barrier.
Wherein, the emulsifier is by lauryl sodium sulfate and polyoxethylene octylphenyl phenol ether by weight 1-2:1-2's
Ratio composition.The present invention preferably composite emulsifier can promote the stability of emulsification, so that the efficiency of graft reaction, is conducive to shape
At the shell of suitable thickness.
Diffusion barrier of the present invention the preparation method comprises the following steps: weighing polycarbonate, light diffusing agent, antioxidant and light in parts by weight
Stabilizer carries out melting extrusion granulation, is then molded to get diffusion barrier is arrived.
Wherein, the diffusion barrier with a thickness of 200-600 μm.
The beneficial effects of the present invention are: by the way that deep Vee hull slot and shallow v groove is arranged in incidence surface, it can be with multi-angle by light
The light that source issues is reflected;So that light source is obtained the effect of different extent of refraction, enables light with multi-angle into light guide plate
Transmitting, to make to obtain light more evenly;By the way that triangular prism is arranged in light-emitting surface, emitting brightness is improved, can be dropped in this way
The brightness degree of low light source, so that power consumption be made to reduce;Increase refraction area by setting groove and salient point, while light can be made
Line is equably projected from light-emitting surface.
Detailed description of the invention
Invention is described further using attached drawing, but the embodiments in the accompanying drawings do not constitute any limitation to the present invention,
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to the following drawings
Its attached drawing.
Fig. 1 is the structural diagram of the present invention;
Fig. 2 is part A enlarged diagram in Fig. 1;
Fig. 3 is the top view of light guide plate;
Fig. 4 is the bottom view of light guide plate.
Wherein: 1- light guide plate;11- incidence surface;The first diffusion barrier of 2-;3- bright enhancement film;The second diffusion barrier of 4-;5- reflecting plate;
61- deep Vee hull slot;62- shallow v groove;14- triangular prism;71- groove;72- salient point;The first groove of 73-;The second groove of 74-;51- card
Block;8- light source.
Specific embodiment
The present invention is described in further detail in the following with reference to the drawings and specific embodiments, is not reality of the invention
It applies range and is confined to this.
As shown in Figs 1-4, a kind of mobile phone leaded light component described in the present embodiment, including the reflection set gradually from the bottom to top
Plate 5, light guide plate 1, the first diffusion barrier 2, bright enhancement film 3 and the second diffusion barrier 4;The shape of the light guide plate 1 is wedge shape;It is described to lead
The left side of tabula rasa 1 is incidence surface 11;The thickness of the light guide plate 1 is gradually reduced from left to right;If the incidence surface 11 is equipped with
Dry group deep Vee hull slot 61 and several groups shallow v groove 62;Deep Vee hull slot 61 described in several groups is placed equidistant on the incidence surface 11;
One group of shallow v groove 62 is equipped between deep Vee hull slot 61 described in two adjacent groups;The top surface of the light guide plate 1 is light-emitting surface;It is described go out
Smooth surface is equipped with several triangular prisms 14 being arranged parallel to each other;The bottom surface of the light guide plate 1 is equipped with several grooves 71;Institute
It is hemispherical for stating the shape of groove 71;The inside of each groove 71 is equipped with several salient points 72.
Specifically, 8 face incidence surface 11 of light source designs;By the way that deep Vee hull slot 61 and shallow v groove is arranged in incidence surface 11
62, the light that light source 8 issues can be reflected with multi-angle;So that light source 8 is obtained different refraction angles, enables light multi-angle
Ground is transmitted into light guide plate 1, to make to obtain light more evenly;By the way that triangular prism 14 is arranged in light-emitting surface, make emitting brightness
It improves, the brightness degree of light source 8 can be reduced in this way, so that power consumption be made to reduce;Increased by setting groove 71 and salient point 72
Add refraction area, while light can be made equably to project from light-emitting surface.
As shown in figure 4, a kind of mobile phone leaded light component described in the present embodiment, the groove 71 are evenly distributed on the leaded light
On the bottom surface of plate 1.When groove 71 is uniformly distributed on bottom surface, the even luminosity effect of light guide plate 1 is good.The groove 71 includes two
The first groove 73 and the second groove 74 of kind different-diameter length;Each described first groove 73 is set to two described second
Between groove 74.In the case where being evenly distributed, the groove 71 of a variety of different-diameter length is set, even luminosity is further enhanced.
As shown in Fig. 2, a kind of mobile phone leaded light component described in the present embodiment, the salient point 72 are evenly distributed on groove 71
On.Salient point 72 can increase the reflective surface area of light, increase the even luminosity of light guide plate 1.
As shown in Figure 1, a kind of mobile phone leaded light component described in the present embodiment, the left side of the reflecting plate 5 and the leaded light
Plate 1 against;The right side of the reflecting plate 5 is equipped with the fixture block 51 for being clamped with the light guide plate 1.51 one side of fixture block is for branch
The light guide plate 1 of wedge shape is supportted, on the other hand for positioning, guarantees that 1 installation site of light guide plate is accurate.
Embodiment 2
Wherein, the first diffusion barrier 2 and the second diffusion barrier 4 are made of the raw material of following parts by weight:
The preparation method of every parts by weight light diffusing agent includes the following steps:
(1) by the methyl methacrylate of 65 parts by weight, the butyl acrylate of 6 parts by weight, 8 parts by weight 4- hydroxybutyl
Acrylate, the chain-transferring agent of 0.07 parts by weight, the first initiator of 0.2 parts by weight and 8 parts by weight solvent be stirred it is mixed
It closes, is warming up to 130 DEG C, and insulation reaction 2h, obtains pre-polymer solution;
(2) polymer solution is fractionated, removes unreacted monomer, chain-transferring agent and solvent, washed, done
It is dry, prepolymer is obtained, the prepolymer is added to N, N- methylacetamide is dissolved, and spinning solution is obtained;
(3) spinning solution is subjected to electrostatic spray, obtains a nanometer nuclear particle;
(4) 35 parts by weight of styrene, 6 parts by weight of methylmethacrylate, 3 weights are added in 100 parts by weight of deionized water
It measures part propyl methacrylate and 1.5 parts by weight Emulsifier, after stirring and emulsifying, 0.71 the second initiator of parts by weight and 35 weights is added
The nanometer nuclear particle in part step (3) is measured, then heats to 75 DEG C, after reacting 1.2h, is warming up to 90 DEG C, the reaction was continued 0.8h,
Obtain core-shell polymer emulsion;
(5) core-shell polymer emulsion be demulsified, washed, being dried to get the light diffusing agent is arrived.
Wherein, first initiator is by cumyl peroxide and peroxidating di tert butyl carbonate by weight the ratio of 2:1
Composition.
Wherein, the chain-transferring agent is made of lauryl mercaptan and positive hexyl mercaptan by weight the ratio of 2:1.
Wherein, the solvent is dimethylbenzene.
Wherein, in step (2), the N, the weight ratio of N- methylacetamide and prepolymer is 4:1.
Wherein, in step (3), the voltage of electrostatic spray is 20kv, and the temperature of electrostatic spray is 30 DEG C.
Wherein, second initiator is made of ammonium persulfate and potassium peroxydisulfate by weight the ratio of 2:1.
Wherein, the antioxidant is made of antioxidant 168 and antioxidant 1010 by weight the ratio of 1:1, institute
Light stabilizer is stated by 1- methyl -8- (1,2,2,6,6- pentamethyl -4- piperidines) sebacate and 2- cyano -3,3 '-diphenylprop
Olefin(e) acid -2- ethylhexyl mixes composition by weight the ratio of 1:1.5.
Wherein, the emulsifier is by lauryl sodium sulfate and polyoxethylene octylphenyl phenol ether by weight the ratio of 1:1
Composition.
Diffusion barrier of the present invention the preparation method comprises the following steps: weighing polycarbonate, light diffusing agent, antioxidant and light in parts by weight
Stabilizer carries out melting extrusion granulation, is then molded to get diffusion barrier is arrived.
Embodiment 3
Wherein, the first diffusion barrier 2 and the second diffusion barrier 4 are made of the raw material of following parts by weight:
The preparation method of every parts by weight light diffusing agent includes the following steps:
(1) by the methyl methacrylate of 60 parts by weight, the butyl acrylate of 4 parts by weight, 6 parts by weight 4- hydroxybutyl
Acrylate, the chain-transferring agent of 0.05 parts by weight, the first initiator of 0.1 parts by weight and 6 parts by weight solvent be stirred it is mixed
It closes, is warming up to 120 DEG C, and insulation reaction 3h, obtains pre-polymer solution;
(2) polymer solution is fractionated, removes unreacted monomer, chain-transferring agent and solvent, washed, done
It is dry, prepolymer is obtained, the prepolymer is added to N, N- methylacetamide is dissolved, and spinning solution is obtained;
(3) spinning solution is subjected to electrostatic spray, obtains a nanometer nuclear particle;
(4) 30 parts by weight of styrene, 4 parts by weight of methylmethacrylate, 1 weight are added in 100 parts by weight of deionized water
It measures part propyl methacrylate and 1 parts by weight Emulsifier, after stirring and emulsifying, 0.5 the second initiator of parts by weight and 30 weight is added
Nanometer nuclear particle in part step (3) then heats to 70 DEG C, after reacting 1.5h, is warming up to 85 DEG C, the reaction was continued 1h, obtains
Core-shell polymer emulsion;
(5) core-shell polymer emulsion be demulsified, washed, being dried to get the light diffusing agent is arrived.
Wherein, first initiator is by cumyl peroxide and peroxidating di tert butyl carbonate by weight the ratio of 1:1
Composition.
Wherein, the chain-transferring agent is made of lauryl mercaptan and positive hexyl mercaptan by weight the ratio of 1:1.
Wherein, the solvent is dimethylbenzene.
Wherein, in step (2), the N, the weight ratio of N- methylacetamide and prepolymer is 3:1.
Wherein, in step (3), the voltage of electrostatic spray is 15kv, and the temperature of electrostatic spray is 25 DEG C.
Wherein, second initiator is made of ammonium persulfate and potassium peroxydisulfate by weight the ratio of 1:1.
Wherein, the antioxidant is made of antioxidant 168 and antioxidant 1010 by weight the ratio of 1:1, institute
Light stabilizer is stated by 1- methyl -8- (1,2,2,6,6- pentamethyl -4- piperidines) sebacate and 2- cyano -3,3 '-diphenylprop
Olefin(e) acid -2- ethylhexyl mixes composition by weight the ratio of 1:1.
Wherein, the emulsifier is by lauryl sodium sulfate and polyoxethylene octylphenyl phenol ether by weight the ratio of 1:1
Composition.
Diffusion barrier of the present invention the preparation method comprises the following steps: weighing polycarbonate, light diffusing agent, antioxidant and light in parts by weight
Stabilizer carries out melting extrusion granulation, is then molded to get diffusion barrier is arrived.
Embodiment 4
Wherein, the first diffusion barrier 2 and the second diffusion barrier 4 are made of the raw material of following parts by weight:
The preparation method of every parts by weight light diffusing agent includes the following steps:
(1) by the methyl methacrylate of 70 parts by weight, the butyl acrylate of 8 parts by weight, 10 parts by weight 4- hydroxyl fourth
Base acrylate, the chain-transferring agent of 0.1 parts by weight, the first initiator of 0.3 parts by weight and 10 parts by weight solvent be stirred
Mixing, is warming up to 140 DEG C, and insulation reaction 1h, obtains pre-polymer solution;
(2) polymer solution is fractionated, removes unreacted monomer, chain-transferring agent and solvent, washed, done
It is dry, prepolymer is obtained, the prepolymer is added to N, N- methylacetamide is dissolved, and spinning solution is obtained;
(3) spinning solution is subjected to electrostatic spray, obtains a nanometer nuclear particle;
(4) 40 parts by weight of styrene, 8 parts by weight of methylmethacrylate, 5 weights are added in 100 parts by weight of deionized water
It measures part propyl methacrylate and 2 parts by weight Emulsifier, after stirring and emulsifying, 1 the second initiator of parts by weight and 40 parts by weight is added
Nanometer nuclear particle in step (3), then heats to 80 DEG C, after reacting 1.5h, is warming up to 85 DEG C, the reaction was continued 1h, obtains core
Shell polymer latex;
(5) core-shell polymer emulsion be demulsified, washed, being dried to get the light diffusing agent is arrived.
Wherein, first initiator is by cumyl peroxide and peroxidating di tert butyl carbonate by weight the ratio of 3:1
Composition.
Wherein, the chain-transferring agent is made of lauryl mercaptan and positive hexyl mercaptan by weight the ratio of 3:1.
Wherein, the solvent is dimethylbenzene.
Wherein, in step (3), the voltage of electrostatic spray is 25kv, and the temperature of electrostatic spray is 35 DEG C.
Wherein, second initiator is made of ammonium persulfate and potassium peroxydisulfate by weight the ratio of 3:1.
Wherein, the antioxidant is made of antioxidant 168 and antioxidant 1010 by weight the ratio of 1:1, institute
Light stabilizer is stated by 1- methyl -8- (1,2,2,6,6- pentamethyl -4- piperidines) sebacate and 2- cyano -3,3 '-diphenylprop
Olefin(e) acid -2- ethylhexyl mixes composition by weight the ratio of 1:2.
Wherein, the emulsifier is by lauryl sodium sulfate and polyoxethylene octylphenyl phenol ether by weight the ratio of 2:1
Composition.
Diffusion barrier of the present invention the preparation method comprises the following steps: weighing polycarbonate, light diffusing agent, antioxidant and light in parts by weight
Stabilizer carries out melting extrusion granulation, is then molded to get diffusion barrier is arrived.
Comparative example 1
The diffusion barrier (no light diffusing agent) that the polycarbonate used in embodiment 2-4 is directly prepared into.
Comparative example 2
Polycarbonate and commercially available conventional organosilicon light diffusing agent, antioxidant and the light used in embodiment 2-4 is stablized
Diffusion barrier made of agent.
The present invention carries out tensile strength, notch impact strength, light transmittance to the diffusion barrier of embodiment 2-4 and comparative example 1-2
With the test of mist degree, the thickness of diffusion barrier is 400 μm, and test result see the table below:
As seen from the above table, the addition of light diffusing agent influences the tensile strength of polycarbonate little, commercially available conventional
Light diffusing agent can be such that the tensile strength of polycarbonate slightly reduces, and light diffusing agent of the invention can make the tensile strength of polycarbonate
It slightly improves, but the influence for notch impact strength, commercially available conventional light diffusing agent be easy to cause the urgency of notch impact strength
It falls sharply low, this is because conventional light diffusing agent is poor in polycarbonate dispersion property, is easy to happen stress concentration phenomenon, and this hair
Bright light diffusing agent and polycarbonate compatibility are preferable, and have preferable toughness, thus can promote lacking for polycarbonate
Mouth impact strength.
From embodiment 2, comparative example 1 and comparative example 2 pair it is found that although commercially available conventional organosilicon light diffusing agent can be shown
The mist degree for improving diffusion barrier is write, but the reduction on light transmittance is also more significant, and the light of use of the invention is spread
Agent can avoid the excessive descent of light transmittance while significantly improving diffusion barrier mist degree.
The above is only a preferred embodiment of the invention, therefore all according to structure described in present patent application range
It makes, the equivalent change or modification that feature and principle are done, in the protection scope of present patent application.